JP2007015682A - Display device and display method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an on-vehicle display device capable of correctly performing the image limitation to the position of a driver's seat specific to a vehicle. <P>SOLUTION: The display device is provided with a display section (1001) which can display separate images in two view directions on a driver's seat side and a front passenger seat side on the same screen; a setting section (1006) capable of setting the position of the driver's seat of a vehicle with the display section (1001) installed thereon, and a control section (1002) for permitting the display of individual images in two view directions on the driver's seat side and the front passenger seat side in the display section (1001) when the position of the driver's seat is installed by the setting section (1006). <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a multi-view display device that can provide different information substantially independently to a plurality of users on a single screen, and more particularly to a vehicle such as a navigation device or a DVD player. The present invention relates to a display device that displays an image by a mounted device.

  From the viewpoint of safety, in Japan, drivers are prohibited from watching TV images and DVD images while driving a vehicle. The image watched by the driver cannot be displayed while the vehicle is running. For this reason, passengers other than the driver, for example, passengers in the passenger seat next to the driver, are not prohibited from watching TV images or DVD images. I can't see it.

  On the other hand, various technologies have been proposed for making display contents for a driver different from display contents for an occupant other than the driver. For example, in Patent Document 1, as shown in FIG. 11, a cover 1016 provided with light shielding bands 1014 and 1015 on both front and back surfaces of a casing 1013 is disposed on the front side of the liquid crystal display panel 1010. There is disclosed a display device that displays a driver's seat image on every other belt-shaped display portion 1011 that is set every other and displays a passenger seat image on a belt-shaped display portion 1012 that is set between the belt-shaped display portions 1011. In this display device, by providing the light shielding bands 1014 and 1015, the light emitted from the belt-like display unit 1011 that displays the driver's seat image is incident on the eyes of the driver DR, but displays the passenger seat image. The light emitted from the belt-shaped display unit 1012 is prevented from entering the eyes of the driver DR, while the light emitted from the belt-shaped display unit 1012 that displays the passenger seat image is incident on the passenger seat occupant PA. The light emitted from the belt-like display unit 1011 that displays the driver seat image is prevented from entering the passenger seat passenger PA.

  By adopting such a display device for an in-vehicle display device, as shown in FIG. 14A, the map image 1042 by the navigation device can be seen from the driver DR but not from the passenger occupant PA. And the DVD image 1043 by the DVD player is displayed on the display device 1041 so that it can be seen from the passenger seat occupant PA but not from the driver DR, as shown in FIG. 14 (b). Can do. As a result, even when the vehicle is traveling, the passenger occupant PA can watch TV, movies, and the like.

  As other conventional techniques, Patent Document 2 and Patent Document 3 can simultaneously display two screens on a single liquid crystal display (LCD). For example, different screens are viewed from a driver seat and a passenger seat. A display device is disclosed. Patent Document 4 and Patent Document 5 disclose a two-screen display device that can simultaneously display two types of images on the same screen. Furthermore, Patent Documents 6 and 7 disclose a parallax barrier for separating two screens.

JP 2003-137005 A JP-A-6-186526 JP 2000-137443 A JP-A-11-331876 JP-A-9-46622 JP-A-10-123461 JP-A-11-84131

  As described above, in Japan, a driver is prohibited from watching images such as DVD images and TV images that the driver watches while driving. Therefore, even when a vehicle-mounted display device capable of simultaneously displaying the driver seat image and the passenger seat image on the same screen is installed in the vehicle, it is necessary to appropriately limit the driver seat image while the vehicle is traveling. The position of the driver's seat in the vehicle is different, for example, between the right-hand drive car and the left-hand drive. Therefore, even if the driver's seat image is restricted, the restriction does not function properly if the correct driver's seat position of the vehicle is not set. .

  An object of the present invention is to appropriately limit the display of images according to the driver's seat position when using a display device that can simultaneously display individual images for a plurality of viewing directions on the same screen. An object of the present invention is to provide a display device and a display method that can be used.

  According to the first feature of the present invention, the display means capable of displaying on the same screen individual images for the two viewing directions of the driver seat side and the passenger seat side, and the driver seat of the vehicle in which this display means is installed Setting means for setting information related to the position, and when the information related to the driver's seat position is set by the setting means, display of individual images for the two viewing directions on the driver side and the passenger seat side is permitted on the display means A display device is provided.

  According to the second feature of the present invention, the display means capable of displaying different types of images for the two viewing directions on the driver's seat side and the passenger's seat side on the same screen, and driving of the vehicle in which this display means is installed Setting means for setting information relating to the seat position, and when information relating to the driver seat position is set by the setting means, different types of images for the two viewing directions on the driver side and the passenger seat side on the display means are displayed. There is provided a display device comprising control means for permitting display.

  According to a third aspect of the present invention, there is provided a display method for displaying individual images for two viewing directions on the driver's seat side and the passenger's seat side on the same screen of the display means, and this display means is installed. A display method is provided that permits display of individual images for two viewing directions on the driver's seat side and the passenger's seat side on the display means when information related to the driver's seat position of the vehicle is set.

  According to a fourth aspect of the present invention, there is provided a display method for displaying different types of images for two viewing directions on the driver's seat side and the passenger's seat side on the same screen of the display means, the display means being installed. When information related to the driver's seat position of the vehicle is set, a display method is provided that permits display of different types of images for the two viewing directions on the driver's seat side and the passenger seat side on the display means.

  According to the device according to the first feature or the method according to the third feature, when the information relating to the driver's seat position is set by the setting means, the two viewing directions on the driver seat side and the passenger seat side are displayed on the display means. Since the display of individual images is permitted, the driver's seat position of the vehicle can be reliably set when displaying individual images.

  According to the device according to the second feature or the method according to the fourth feature, when the information relating to the driver's seat position is set by the setting means, the two viewing directions on the driver seat side and the passenger seat side are displayed on the display means. Therefore, when displaying individual images, the driver's seat position of the vehicle can be reliably set.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the technical scope of the present invention is not limited to these embodiments, but extends to the invention described in the claims and equivalents thereof.

  FIG. 1 is a conceptual diagram of a display device according to the present invention. In the figure, 1 is a first image source, 2 is a second image source, 3 is first image data from the first image source, 4 is second image data from the second image source, 5 Is a display control unit, 6 is display data, 7 is a display unit (such as a liquid crystal panel), 8 is a first display image based on the first image source 1, and 9 is a second display based on the second image source 2. The display image 10 is an observer (user) located on the left side of the display unit 7, and 11 is an observer (user) located on the right side of the display unit 7.

  The conceptual diagram of FIG. 1 shows that the observer 10 observes the first display image 8 according to the relative positions of the observers 10 and 11 with respect to the display unit 7, in other words, according to the viewing angle with respect to the display unit 7. The person 11 can conceptually view the second display image 9 at the same time, and the display images 8 and 9 can be viewed over the entire display surface of the display unit 7. In FIG. 1, a first image source 1 is, for example, a movie image of a DVD player or a received image of a television receiver, and a second image source 2 is, for example, a map or route guidance image of a car navigation device. The first image data 3 and the second image data 4 are supplied to the display control unit 5 and processed so that they can be displayed on the display unit 7 substantially simultaneously.

  The display unit 7 supplied with the display data 6 from the display control unit 5 includes a liquid crystal panel provided with a parallax barrier described later. Half of the total number of pixels in the horizontal direction of the display unit 7 is displayed on the first display image 8 based on the first image source 1, and the other half of the pixels is the second display image 9 based on the second image source 2. Used for display. The observer 10 located on the left side with respect to the display unit 7 can see only the pixels corresponding to the first display image 8, and the second display image 9 is displayed by the parallax barrier formed on the surface of the display unit 7. It is blocked and is virtually invisible. On the other hand, the observer 11 located on the right side of the display unit 7 can see only the pixels corresponding to the second display image 9, and the first display image 8 is substantially invisible due to being blocked by the parallax barrier. . In addition, about the parallax barrier, the structure disclosed by the said patent document 5 and the patent document 6 is applicable, for example.

  With such a configuration, different information and content can be provided to the left and right users on a single screen. Of course, if the first and second image sources are the same, the left and right users can view the same image as before.

  FIG. 2 is a perspective view showing an example of mounting the multi-view display device according to the present invention on a vehicle. In the figure, 12 is a passenger seat, 13 is a driver's seat, 14 is a windshield, 15 is an operation unit, and 16 is a speaker.

  The display unit 7 of the multi-view display device of FIG. 1 is arranged in the dashboard portion at the substantially center between the driver's seat 13 and the passenger seat 12 as shown in FIG. Various operations on the multi-view display device are performed by operating a touch panel (not shown), the operation unit 15 or an infrared or wireless remote controller (not shown) integrally formed on the surface of the display unit 7. A speaker 16 is disposed at each door of the vehicle, and sounds, warning sounds and the like linked to the display image are output.

  The observer 11 shown in FIG. 1 sits in the driver seat 13 and the observer 10 sits in the passenger seat 12. The image that can be viewed from the first viewing direction (driver's seat side) with respect to the display unit 7 is, for example, an image such as a map of a car navigation device, and can be viewed from the second viewing direction (passenger seat side) substantially simultaneously. The image is, for example, a television reception image or a DVD movie image. Therefore, the passenger in the passenger seat 12 can enjoy television and DVD at the same time that the driver in the driver seat 13 receives driving assistance by car navigation. Moreover, since each image is displayed using, for example, the entire 7-inch screen, the screen size is not reduced as in the conventional multi-window display. In other words, optimal information and content are provided to the driver and passengers as if each had its own dedicated display.

  FIG. 3 is a schematic view of a cross-sectional structure of the display unit 7. In the figure, 100 is a liquid crystal panel, 101 is a backlight, 102 is a polarizing plate disposed on the backlight side of the liquid crystal panel, 103 is a polarizing plate disposed on the front surface of the liquid crystal panel on the light emitting direction side, and 104 is a TFT (Thin (Film / Transistor) substrate, 105 is a liquid crystal layer, 106 is a color filter substrate, 107 is a glass substrate, and 108 is a parallax barrier. The liquid crystal panel 100 includes a pair of substrates having a liquid crystal layer 105 sandwiched between a TFT substrate 104 and a color filter substrate 106 disposed to face the TFT substrate 104, a parallax barrier 108 disposed on the front surface on the light emitting direction side, and a glass substrate. 107 is sandwiched between two polarizing plates 102 and 103, and is disposed slightly apart from the backlight 101. In addition, the liquid crystal panel 100 includes pixels composed of RGB colors (three primary colors).

  Each pixel of the liquid crystal panel 100 is separately controlled for left side (passenger seat side) display and right side (driver seat side) display. The display pixel on the left side (passenger seat side) is blocked from being displayed on the right side (driver seat side) by the parallax barrier 108 and is visible from the left side (passenger seat side). Further, the display pixel on the right side (driver's seat side) is blocked from being displayed on the left side (passenger seat side) by the parallax barrier 108 and is visible from the right side (driver's seat side). This makes it possible to provide different displays for the driver and passengers. In other words, navigation map information can be given to the driver, and at the same time, a DVD movie or the like can be shown to the passenger. In addition, if the configuration of each pixel of the parallax barrier 108 and the liquid crystal panel is changed, a configuration in which different images are displayed in a plurality of directions such as three directions is also possible. Further, the viewing angle may be varied by configuring the parallax barrier itself with a liquid crystal shutter or the like that can be electrically driven.

  FIG. 4 is a schematic view of the structure of the display panel viewed from the front, and FIG. 3 is a cross section taken along the line AA ′ in FIG. In the figure, 109 is a pixel for left side (passenger seat side) display, and 110 is a pixel for right side (driver's seat side) display. 3 and 4 show a part of the liquid crystal panel 100 in which, for example, 800 pixels are arranged in the horizontal direction and 480 pixels are arranged in the vertical direction. The left (passenger side) display pixel 109 and the right (driver's side) display pixel 110 are grouped in the vertical direction and are arranged alternately. The parallax barriers 108 are arranged at intervals in the horizontal direction and are uniform in the vertical direction. Thus, when the display panel is viewed from the left side, the parallax barrier 108 covers the right pixel 110 and the left pixel 109 is visible. Similarly, when viewed from the right side, the parallax barrier 108 covers the left pixel 109 and the right pixel 110 can be seen. Further, in the vicinity of the front, since both the left pixel 109 and the right pixel 110 are visible, the left display image and the right display image appear to substantially overlap. Here, the left side pixels 109 and the right side pixels 110 alternately arranged in FIG. 4 have RGB colors as shown in FIG. 3, but in each group in the vertical direction, R columns, G columns, B It may be configured by a single color like a column, or may be configured as a column in which a plurality of RGB are mixed.

  FIG. 5 is a circuit diagram showing an outline of the TFT substrate 104. Reference numeral 111 denotes a display panel driving unit, 112 denotes a scanning line driving circuit, 113 denotes a data line driving circuit, 114 denotes a TFT element, 115 to 118 denote data lines, 119 to 121 denote scanning lines, 122 denotes a pixel electrode, and 123 denotes a sub pixel. is there. As shown in FIG. 5, a plurality of subpixels 123 are formed with a region surrounded by the data lines 115 to 118 and the scanning lines 119 to 121 as one unit. In each subpixel, a pixel electrode 122 for applying a voltage to the liquid crystal layer 105 and a TFT element 114 for controlling the switching are formed. The display panel driving unit 111 controls the driving timing of the scanning line driving circuit 112 and the data line driving circuit 113. The scanning line driving circuit 112 performs selective scanning of the TFT element 114, and the data line driving circuit 113 controls the voltage applied to the pixel electrode 122.

  The plurality of subpixels may include first pixel data (for example, data lines 115 and 117) based on synthesized data of first image data and second image data, or first and second individual image data. By transmitting the second pixel data (for right image display) to the data lines 116 and 118, the first image data group for displaying the first image and the second image are displayed. A second image data group to be displayed is formed.

  FIG. 6 is a block diagram showing an outline of a display device according to the present invention, which is an application example to a so-called Audio / Visual / Navigation multifunction device. In the figure, 124 is a touch panel, 200 is a control unit, 201 is a CD / MD playback unit, 202 is a radio reception unit, 203 is a TV reception unit, 204 is DVD playback, 205 is an HD (Hard / Disk) playback unit, and 206 is Navigation unit, 207 distribution circuit, 208 first image adjustment circuit, 209 second image adjustment circuit, 210 audio adjustment circuit, 211 image output unit, 212 VICS information reception unit, 213 GPS information reception , 214 is a selector, 215 is an operation unit, 216 is a remote control transmission / reception unit, 217 is a remote control, 218 is a memory, 219 is an external audio / video input unit, 220 is a camera, 221 is a brightness detection means, 222 is an occupant detection means Reference numeral 223 denotes a rear display unit, 224 denotes an ETC vehicle-mounted device, and 225 denotes a communication unit.

  The display unit 7 includes a touch panel 124, a liquid crystal panel 100, and a backlight 101. As described above, the liquid crystal panel 100 of the display unit 7 substantially includes an image viewed from the driver's seat side as the first viewing direction and an image viewed from the passenger seat side as the second viewing direction. It is possible to display at the same time. The display unit 7 may be a flat panel display other than a liquid crystal panel, such as an organic EL display panel, a plasma display panel, a cold cathode flat panel display, or the like.

  The control unit 200 receives images and sounds from various sources (CD / MD playback unit 201, radio reception unit 202, TV reception unit 203, DVD playback unit 204, HD playback unit 205, and navigation unit 206) from the control unit 200. The first image adjustment circuit 208 and the second image are distributed through the distribution circuit 207 that distributes the image source designated for left to 208 and the source designated for right to 209 based on the instruction of If the sound is a sound, it is distributed to the sound adjusting circuit 210 to the adjusting circuit 209. The first and second image adjustment circuits 208 and 209 adjust the brightness, color tone, contrast, and the like, and display the adjusted images on the display unit 7 in the image output unit 211. The sound adjustment circuit 210 adjusts the distribution, volume, and sound to each speaker, and the adjusted sound is output from the speaker 16.

  FIG. 7 is a block diagram showing an outline of the image output unit 211. In the figure, 226 is a first writing circuit, 227 is a second writing circuit, and 228 is a VRAM (Video RAM).

  For example, as shown in FIG. 7, the image output unit 211 includes a first writing circuit 226, a second writing circuit 227, a VRAM (Video RAM) 228, and a display panel driving unit 111. For example, the first writing circuit 226 outputs image data corresponding to an odd-numbered column of images output from 208 of the adjusted image data (that is, image data for the first display image 8 in FIG. 1). The second writing circuit 227 is based on the image data corresponding to the even-numbered columns output from the 209 (that is, the image data for the second display image 9 in FIG. 1), and in each corresponding area in the VRAM 228. Write. The display panel driving unit 111 is a circuit that drives the liquid crystal panel 100, and is based on the image data (the combined data of the first image data and the second image data) held in the VRAM 228. The corresponding pixel is driven. Since the image data is written in the VRAM 228 so as to correspond to the multi-view display image obtained by combining the first image data and the second image data, only one drive circuit is required. The operation is also the same as that of a driving circuit of a normal liquid crystal display device. As another configuration, the first display panel driving circuit and the first display panel driving circuit for driving the corresponding pixels of the liquid crystal display panel based on the respective image data without combining the first image data and the second image data. It is also conceivable to use two display panel drive circuits.

  Here, an example of various sources shown in FIG. 6 will be described. When the HD playback unit 205 is selected, music data such as an MP3 file stored in the hard disk (HD), image data such as a JPEG file, and navigation data are stored. The map data and the like are read out, and menu display and image data for selecting music data can be displayed on the display unit 7.

  The navigation unit 206 includes a map information storage unit that stores map information used for navigation, obtains information from the VICS information reception unit 212 and the GPS information reception unit 213, and creates an image for the navigation operation. Can be displayed. The TV receiving unit 203 receives an analog TV broadcast wave and a digital TV broadcast wave from the antenna via the selector 214.

  FIG. 8 is a block diagram showing an outline of the control unit 200. In the figure, 229 is an interface, 230 is a CPU, 231 is a storage unit, and 232 is a data storage unit.

  The control unit 200 controls the distribution circuit 207 and various sources, and displays the selected two sources or one source. The control unit 200 also causes the display unit 7 to display an operation menu display for controlling these various sources. Here, as shown in FIG. 8, the control unit 200 is configured by a microprocessor or the like, and includes a CPU 230 that comprehensively controls each unit and each circuit in the display device via an interface 229. The CPU 230 is provided with a program storage unit 231 including a ROM that stores various programs necessary for the operation of the display device, and a data storage unit 232 including a RAM that stores various data. Note that the ROM, the RAM, and the like can be used either those built in the CPU or those provided externally. The ROM may be an electrically rewritable nonvolatile memory such as a flash memory.

  The user controls the various sources using the touch panel 124 attached to the surface of the display unit 7, a switch provided around the display unit 7, or input operation or selection operation such as voice recognition using the operation unit 215. be able to. Further, an input or selection operation may be performed by the remote control 217 via the remote control transmission / reception unit 216. The control unit 200 performs control including various sources in accordance with the operation of the touch panel 124 and the operation unit 215. Moreover, the control part 200 is comprised so that each audio | voice volume etc. of the speaker 16 with which the inside of a vehicle was equipped like FIG. The control unit 200 also stores various setting information such as image quality setting information, programs, and vehicle information in the memory 218.

  FIG. 9 is a block diagram showing an outline of the memory 218. In the figure, reference numeral 233 denotes a first screen RAM, 234 denotes a second screen RAM 234, 235 denotes image quality setting information storage means, and 236 denotes an environment adjustment value holding means.

  For example, as shown in FIG. 9, the memory 218 includes a first screen RAM 233 and a second screen RAM 234 in which adjustment values of the image quality of the first image and the second image set by the user can be written. Also, image quality setting information storage means 235 in which a plurality of image quality adjustment values are stored in advance for each image quality adjustment as preset values that can be read out when adjusting the image quality of the first image and the second image. Have. Furthermore, in order to adjust the image quality according to changes in the surrounding environment such as the brightness change outside the vehicle, there is provided an environmental adjustment value holding means 236 that holds adjustment values of the image quality of the first video and the second video with respect to the surrounding environment. is doing. Here, the image quality setting information storage unit 235 and the environmental adjustment value holding unit 236 are configured by an electrically rewritable nonvolatile memory such as a flash memory or a battery-backed volatile memory.

  For example, an image from the rear monitoring camera 220 connected to the external audio / image input unit 219 may be displayed on the display unit 7. In addition to the rear monitoring camera 220, a video camera, a game machine, and the like may be connected to the external audio / image input unit 219.

  The control unit 200 is based on information detected by the brightness detection unit 221 (for example, a vehicle light switch or light sensor) or the occupant detection unit 222 (for example, a pressure sensor provided in a driver seat or a passenger seat). It is possible to change settings such as the sound localization position.

  Reference numeral 223 denotes a rear display unit provided for the rear seat of the vehicle, which is the same as the image displayed on the display unit 7 via the image output unit 211, or an image for the driver's seat or the image for the passenger seat. One can be displayed.

  The control unit 200 displays a charge display from the ETC in-vehicle device 250. Further, the control unit 200 may control the communication unit 225 for wireless connection with a mobile phone or the like so that a display related thereto is displayed.

  Next, another embodiment of the present invention will be described with reference to FIGS. FIG. 10 is a block diagram for explaining a schematic configuration of an in-vehicle display device according to an embodiment of the present invention. The in-vehicle display device includes a display unit 1001, a display control unit 1002, a video signal source 1003, a vehicle speed sensor 1004, a memory 1005, and a user setting input unit 1006. This in-vehicle display device displays not only a video display based on a video signal from the video signal source 1003 but also an operation input video of an electronic device (including the video signal source 1003) mounted on the vehicle.

  The display unit 1001 can display the driver seat image in the driver seat direction and the passenger seat image in the passenger seat direction, for example, with a configuration as shown in FIG. A display unit 1001 corresponds to a display unit.

  A display control unit 1002 which is a display control unit includes a CPU (Central Processing Unit) 1021, a memory 1 / F (interface) 1022, a GU1 (graphic user interface) 1023, a video distributor 1024, and a left video output unit. 1025, a right image output unit 1026, and a panel controller 1027. The CPU 1021 uses the input information from the user setting input unit 1006 input via the GU 1023, the control program and setting information read from the memory 5 via the memory 1 / F 1022, the vehicle speed information input from the vehicle speed sensor 1004, and the like. Based on this, the overall operation of the display control unit 1002 is controlled.

  The video distributor 1024 distributes and outputs one or more video signals output from the video signal source 1003 to the left video output unit 1025 and the right video output unit 1026. The left video output unit 1025 creates a left video signal to be given to the strip display unit 1012 that displays the left video on the liquid crystal display panel 1010 based on a control signal from the CPU 1021, and outputs the left video signal to the panel controller 1027. Similarly, the right video output unit 1026 creates a right video signal to be given to the strip display unit 1011 that displays the right video on the liquid crystal display panel 1010 based on the control signal from the CPU 1021, and outputs the right video signal to the panel controller 1027. The panel controller 1027 displays the left video on the band-like display unit 1012 of the liquid crystal display panel 1010 based on the left video signal supplied from the left video output unit 1025, and forms the band shape based on the right video signal supplied from the right video output unit 1026. The right image is displayed on the display unit 1011.

  The video signal source 1003 includes a video output device whose main function is to output a video to be shown to an occupant. The video output device includes a navigation device 1031, a DVD player 1032, and a television receiver 1033. And so on. Also, the video signal source 1003 includes a device that outputs an operation input video although the video output is not a main function like the audio player. The vehicle speed sensor 1004 detects the traveling speed of the vehicle and outputs a detection signal to the CPU 1021. The vehicle speed sensor 1004 and the CPU 1021 correspond to travel detection means.

  The memory 1005 includes a ROM, a RAM, a hard disk, an EPROM (electrically writable ROM), and the like. In the EPROM, installation location related information is recorded as initial setting information of the in-vehicle display device. The installation location related information is information related to the installation location such as the installation location of the display unit 1001 and the position of the handle. This installation location related information is input and set by the user when the in-vehicle display device is installed in the vehicle. The input setting can be performed using the user setting input unit 1006. The memory 1005 corresponds to an installation location related information storage unit.

  The user setting input unit 1006 is realized by, for example, a transparent touch panel, and is disposed on the front side of the display unit 1001, more precisely on the front side of the cover 1016 shown in FIG. Then, the CPU 1021 displays an operation switch on the display unit 1001 as an operation input image. In this state, if the user presses an area corresponding to the operation switch on the touch panel, the CPU 1021 recognizes that the operation switch has been pressed, and outputs an operation instruction signal corresponding to the pressed operation switch to the corresponding device. .

  From the left video output unit 1025 and the right video output unit 1026 described above, not only the video signal converted from the video signal supplied from the video signal source 1003 into a mode suitable for display on the display unit 1001 but also displayed while the vehicle is running. A video signal corresponding to displayable video that is not limited is output. The displayable video is a video that is not watched by the driver, and includes, for example, a still video and a moving video that can predict a change in video to some extent. On the other hand, the display restriction video whose display is restricted while the vehicle is running is a video that the driver is gazing at, and a video image such as a DVD video by the DVD player 1032 or a TV video by the television receiver 1033. For example, the operation input video is a complicated operation input video in which a video transition frequently occurs in the navigation device 1031 or a scroll operation is required.

  FIG. 12 is a flowchart for explaining the processing contents of the CPU 1021 in the display control unit 1002. For example, when the driver turns on the ignition switch, the process is started. In step a1, the contents of the installation location related information recorded in the EPROM of the memory 1005 are confirmed. If the installation location related information is handle position information indicating that it is a left steering wheel, in step a2, the CPU 1021 recognizes the left image as a driving restriction image and recognizes it as a driver seat image.

  If the installation location related information is handle position information indicating that it is the right handle, in step a3, the CPU 1021 recognizes the right-side image as a travel restriction image and recognizes it as a driver seat image.

  When the installation location related information is installation location information indicating that the in-vehicle display device (exactly the display unit 1) is installed in the rear seat, in step a4, the CPU 1021 determines which of the left video and the right video. Is not subject to travel restrictions and is not recognized as a driver seat image. That is, even if it is detected that the vehicle is traveling when the display restriction video is displayed on both or one of the left video and the right video, the video display is continued as it is.

  FIG. 13 is a flowchart for explaining the processing contents during video display by the CPU 1021. This process is performed when the driver seat image is displayed. That is, it is performed when the left side image or the right side image is recognized as a travel restriction image in step a2 or step a3 in FIG. 12 as a driver seat image and the driver seat image is displayed on the display unit 1001. is there.

  In step b1, it is determined whether or not the vehicle is traveling based on a sensor signal from the vehicle speed sensor 1004. If it is determined that the vehicle is traveling, the process proceeds to step b2, and it is determined whether or not the driver seat image is a display restriction image. If it is determined that the driver seat image is a display-restricted image, the process proceeds to step b3, and the displayable image is displayed as the driver seat image.

  The displayable video is a video that is not watched by the driver as described above, and includes, for example, a still video or a video that can predict a change in video to some extent. As the displayable video, for example, the following video can be used.

  As a predetermined still image, an initial screen of the audio player, a so-called blue back screen of blue color, for example, a black screen of black color realized by stopping the video output, displayed immediately before the vehicle running is detected The cab image of the moving image that has been used can be used. Further, as a moving image that can predict a change in the image to some extent, a simple repeated moving image such as a vehicle position display screen while the vehicle is running by the navigation device 1031 or a screen saver of a personal computer can be used.

  If it is determined in step b1 that the vehicle is not traveling, or if it is determined that the driver seat image is not a display restriction image, the process proceeds to step b4, and the current image display state is continued.

According to the above embodiment, the following effects can be obtained.
(1) In the above embodiment, the installation location related information is stored in the EPROM of the memory 5, and the right side image and the left side image displayed on the display unit 1001 based on the stored installation location related information are subject to travel regulation. Whether or not it is a video for the driver's seat. As a result, the driver's seat video can be appropriately regulated in accordance with the installation location of the display unit 1001 while the vehicle is traveling. For example, when steering wheel position information is stored as installation location related information, the right image is recognized as a driving restriction image when the right steering wheel is used, and the left image is driven as the driving restriction object when the left steering wheel is used. Recognized as a seat video. As a result, the display of the driver's seat image is appropriately restricted while the vehicle is traveling. In addition, when the installation location related information is installation location information indicating that the display unit 1001 is installed in the rear seat, neither the right image nor the left image is recognized as a driving restriction image and is not recognized as a driver seat image. Therefore, the displayed image is not limited even when the vehicle is running. Thus, by referring to the installation location related information, it is possible to appropriately limit the display of the driver's seat video according to the installation location of the display unit 1001.

  (2) According to the above embodiment, when the display restriction image is displayed as the driver seat image on the display unit 1001, if it is detected that the vehicle is traveling, the displayable image is displayed for the driver seat. It is displayed on the display unit 1001 as an image. Thus, the driver can be prevented from gazing at the driver's seat image, and an image display in consideration of safety when the vehicle is traveling can be realized.

In addition, you may change the said embodiment as follows.
(3) The driver may be able to select an image to be displayed as a driver seat image while driving the vehicle from a plurality of types of displayable images. Selection of video is performed using a user setting input unit 1006 that is video selection means. In this case, when it is detected that the vehicle is traveling, the displayable image selected by the driver is displayed as the driver seat image. As a result, the driver's seat image displayed instead of the display restriction image while the vehicle is running can be made a displayable image according to the driver's preference.

  (4) When it is detected that the vehicle is running while the input operation image is displayed as the driver seat image, the displayable image is displayed as the driver seat image and the passenger seat image is displayed. The input operation video may be displayed. In this case, if the vehicle is started while the input operation image is displayed as the driver seat image and the driver is performing the input operation, the displayable image is displayed as the driver seat image, and the passenger seat image is displayed. As described above, the input operation video is displayed. Therefore, when the input operation by the driver is interrupted by the start of the vehicle, the passengers in the passenger seat can perform the subsequent input operation. As a result, the input operation can be surely performed without interruption.

  (5) When it is detected that the vehicle is running when the input operation image is displayed as the driver seat image, the input operation image is displayed as the passenger seat image. The operation video may be used as a target, or a specific input operation video may be used as a target. For example, when an input operation image requiring a complicated operation that requires a scroll operation is displayed, the image is displayed as a passenger seat image, and the input operation is completed by pressing the switch once. When an input operation image that may be a simple operation is displayed, it may not be displayed as a passenger seat image.

  (6) The fact that the vehicle is traveling means that, for example, the parking brake signal (PKB signal) is off, the movement of the vehicle is detected by a GPS (global positioning system) signal, and the navigation device 1031 is built in. You may make it judge based on the vibration detected based on the detection result of a gyroscope.

  (7) When it is detected that the vehicle is running, the control for displaying the displayable image as the driver seat image is not only performed when the display restriction image is displayed as the driver seat image, but also for the driver seat. You may make it perform irrespective of the display state of an image | video. For example, when it is detected that the vehicle is running when the driver's seat image is not displayed, a displayable image may be displayed. Further, when it is detected that the vehicle is running while displaying the displayable image as the driver seat image, the display may be switched to another displayable image.

  (8) When it is detected that the vehicle is running, the control for displaying the input operation image as the passenger seat image is performed not only when the input operation image is displayed as the driver seat image but also when driving. It may be performed regardless of the display state of the seat video. For example, if the driver's seat image is not displayed, or if the vehicle is detected while the display restriction image or displayable image is displayed as the driver's seat image, the passenger seat image is used for input operation. An image may be displayed.

  (9) Although the case of the in-vehicle display device has been described in the above embodiment, the display device can be installed and used not only in the vehicle interior of the vehicle but also in various places.

  FIGS. 15 and 16 show examples of screen transitions during travel regulation. 15 and 16, (a) shows an example of a screen transition when the driver's seat is on the right side of the vehicle body (so-called right-hand drive vehicle), and (b) shows a case where the driver's seat is on the left side of the vehicle body (so-called left-hand drive vehicle). ) Shows an example of screen transition.

  In the example shown in FIG. 15, when a stopped vehicle starts running and travel regulation is applied, the screen transitions to a displayable video (for example, navigation screen) that was selected before the display restriction video (for example, DVD video). An example is shown. That is, when the vehicle is stopped (1), a navigation image is displayed on the driver's side screen 1050, a DVD image is displayed on the passenger's side screen 1060, and thereafter (when the vehicle is stopped (2)), the driver displays a DVD image. Is displayed on the screen 1050 and enjoying the video, when the vehicle starts to travel (during vehicle traveling (3)) and the travel restriction is applied to the display device, the DVD video is the display restricted video. The screen 1050 automatically transitions to a navigation image that is a displayable image selected before the travel restriction is applied. In this case, the video on the passenger seat side is not subject to travel restrictions, and thus remains a DVD video. In FIGS. 4A and 4B, the driver's seat and the passenger seat are interchanged, so the right and left images are interchanged, but the screen transition process associated with travel restrictions is the same.

  In the example shown in FIG. 16, when the travel restriction is applied, the display of a display restriction video (for example, a DVD video) on the driver's seat that is the travel restriction target is prohibited, and a notification to that effect is provided on the still screen by using a telop or the like. Is shown. That is, when the DVD image is displayed on the driver's side screen when the vehicle is stopped (2), when the vehicle starts traveling, the display of the DVD image on the driver's seat screen 150 is forcibly stopped. "Please enjoy with audio only." Forced transition to a still screen with a telop. On the other hand, since the passenger seat side is not subject to travel restrictions, the DVD image that is the display restricted image is continuously displayed. As a result, the display of the display restriction image on the driver's seat side is automatically stopped when the vehicle is traveling, and the driver can perform safe driving and can freely enjoy the image on the passenger seat side.

  FIG. 17 is a diagram for explaining still another embodiment of the present invention, and shows a flowchart for making the travel regulation target video variable. In other words, depending on whether the vehicle to which the display device is attached is a right-hand drive vehicle or a left-hand drive vehicle, appropriate installation location related information (driver's seat information) is input and the travel restriction image is set appropriately. 6 shows a flowchart for enabling selection of a screen display video. This is a configuration for allowing a user who purchases the display device according to the present invention and attaches it to his / her own vehicle to arbitrarily set a screen for restricting driving according to the handle position of the user-owned vehicle. It is. Without this configuration, for example, when a user who owns a left-hand drive vehicle purchases and installs a display device that is set for travel restrictions for a general right-hand drive vehicle, the restriction is displayed when the dual display function is turned on. The right screen (passenger's seat side) that does not need to be subjected to the restriction is restricted, and the travel restriction is not properly operated.

  The configuration of the flowchart shown in FIG. 17 will be described below with reference to the initial setting screen shown in FIG. The initial setting start condition is that after the display device is incorporated in the vehicle and connected to the battery, the power is turned on (ignition switch is turned on). When this condition is satisfied and the initial setting subroutine is started, the display device displays a screen in a mode in which dual display is not performed in step c1 (dual display OFF screen. For example, the same image is displayed on the right screen and the left screen. Display). In the next step c2, it is detected whether or not a user operation for executing dual display is performed (for example, the dual display button is turned on for a predetermined time or more).

  If YES in step c2, that is, if the two-screen display button is turned on, the caution screen shown in FIG. 18A is displayed (step c3). The caution screen prompts the user to appropriately set the dual display based on the position of the driver's seat, that is, whether the vehicle on which the display device is installed is a right-hand drive vehicle or a left-hand drive vehicle. Accordingly, when the user agrees with the display content of the caution screen (a), the “I agree” button on the screen is turned on. When the user does not agree with the display content, the “I do not agree” button is turned on.

  In step c4, it is determined whether or not the “I agree” button is turned on in the caution screen (a) of FIG. If YES in step c4, that is, if the user agrees to properly set the display screen in the dual display according to the position of the driver's seat in the vehicle, the driver's seat setting screen is displayed in step c5. FIG. 18B shows an example of a driver seat setting screen. In step c6, it is determined whether or not the user's selection is to place the driver's seat on the right side. If YES in step c6, that is, if the user turns on the “right” button in FIG. 18B, setting is made in step c7 so that the travel restriction target video is the right video. This control is, for example, to implement a travel restriction with screen transition as shown in FIG. 15 (a) or FIG. 16 (a).

  In the case of NO in step c6, that is, if the user turns on the “left side” button on the driver seat setting screen of FIG. This control is, for example, to implement travel regulation with screen transition as shown in FIG. 15 (b) or FIG. 16 (b). When the control in step c7 or step c8 is completed, a dual display on screen is displayed in step c9, and the process ends. The dual display on screen may be, for example, a still screen accompanied by a display that informs the user that individual selection of dual display is possible, or a screen that prompts the user to select a desired display screen. Moreover, the driver side may be set in advance on the navigation screen and the passenger side may be set on the DVD display screen.

  If the two-screen display button is not turned on in step c2, the process does not proceed to the next step c3 until the dual display button is turned on. Furthermore, when the user turns on the “I don't agree” button of FIG. 18a in step c4 (NO in step c4), the process returns to step c1 to display the two-screen display off screen. The dual display off screen may be, for example, a still screen with a display that informs the user that dual display individual setting is not possible.

  Next, with reference to FIGS. 19 and 20, the operation at the time of changing the setting of the driver's seat information will be described. In addition, when the initial setting of the driver's seat information performed when the display device is connected to the battery (see FIGS. 17 and 18) has already been completed, there is almost no need to change the setting of the driver's seat information. The driver's seat can be used in case the driver's seat information is entered incorrectly at the time of initial setting (for example, if the driver's seat is set to be a right-hand drive vehicle even though it is a left-hand drive vehicle) A setting change function is provided.

  In the flowchart of FIG. 19, a condition for starting processing (start condition) is to call a setting screen on the menu screen of the display device. When a setting screen is called by operating a menu screen (not shown) in step d1, for example, a setting screen as shown in FIG. 20A is displayed. In the illustrated embodiment, the setting of the opening screen that is automatically displayed when the display device is turned on and the setting change of the driver seat information can be performed via the setting screen (a). When the user completes the desired opening screen setting and / or driver seat information setting change operation on the setting screen of FIG. 20A, the user turns on the setting completion button 2000A. Thereby, the setting is input to the display device. In the screen (a) of FIG. 20, the case where the driver's seat is on the right side of the vehicle is displayed by default as the driver's seat setting.

  Accordingly, in the flowchart of FIG. 19, when the setting screen (a) of FIG. 20 is displayed in step d1, it is determined whether or not the setting completion button 2000A is turned on in the next step d2. If NO in step d2 (when setting has not been completed), it is determined in step d3 whether or not there is a request to change driver seat information. This change request is executed by turning on the change button 2000B on the setting screen (a) of FIG. If YES in step d3, a caution screen shown in FIG. 20B is displayed. In step d4, it is determined whether or not the user agrees to the caution on the caution screen. If YES, the driver seat setting screen shown in FIG. 20C is displayed in step d6.

  In step d7, it is determined whether or not the driver's seat information selected by the user is the right side according to the guidance on the driver's seat setting screen. If YES, the restriction control is executed in step d8 with the travel restriction target image as the right image. In the case of NO, restriction control is executed in step d9 so that the travel restriction target video is the left video. When any regulation control is completed, in step d10, the screen before the setting screen (a) is displayed on the display device, and the process ends. If YES in step d2, that is, if setting complete button 2000A is on in screen (a), the process immediately proceeds to step d10 to display the screen before the setting screen is displayed, and the process is terminated. To do. If NO in step d3, that is, if there is no request for changing driver's seat information, step d2 and the subsequent steps are executed again. If NO in step d5, that is, if the user does not agree with the caution, the operations after step d1 are repeated.

  As described above, in the case where the driver seat information is once set by the initial setting, for example, post-correction of incorrect setting information can be easily executed.

  FIG. 21 is a diagram for explaining still another embodiment of the present invention, and shows an example of setting installation location related information including driver's seat information via a mechanical switch (for example, a dip switch). ing. 21A is a front perspective view of a display device according to the present invention, FIG. 21B is a rear perspective view, and FIG. 21C is a detailed view of a dip switch for setting an installation location provided on the back surface of the display device. Show.

  As shown in FIG. 21, the dip switch 2103 for setting the installation location is provided on the back surface 2102 of the display device 2101. The dip switch 2103 includes a switch 2103A for setting that the driver's seat is on the right side of the vehicle body, a switch 2103B for setting that the driver's seat is on the left side of the vehicle body, and the display device 2101 installed on the rear seat of the vehicle. The rear seat switch 2103C is set, and by selecting one of the switches, the installation location related information of the display device is input to the display device.

  In FIG. 21B, reference numeral 2104 denotes a power supply terminal, 2105 denotes an audio output terminal, 2106 denotes an AM / FM antenna connection terminal, and 2107 denotes a terminal for IP-BUS. Reference numeral 2108 denotes a fan. Note that these connection terminals only show examples, and it is a matter of course that various necessary terminals are provided according to the specifications of the display device 2101.

  A mechanical switch 2103 as shown in FIG. 21 for setting the installation location related information is desirably provided on the back surface 2102 of the display device 2101 that can be operated only by the installation operator. This is a setting that is different from the actual installation location by the user when it is provided in a place that is easy for the user to operate, for example, a setting as if it is a left-hand drive car despite being a right-hand drive car, This is because the driving regulation of the driver's seat image may be illegally released.

  In yet another embodiment of the present invention, the travel restriction control is performed by automatically setting the installation location related information including the driver seat information. In the display device of this embodiment, for example, a table in which vehicle type information and travel regulation information are associated with each other is stored in advance in a memory 1005 illustrated in FIG. 10, while vehicle type information is stored in an in-vehicle LAN (a device mounted on a vehicle). Network automatically) and external communication (connection with car dealers via the Internet). This makes it possible to automatically execute the travel restriction control by referring to the table based on the vehicle type information acquired by communication.

  FIG. 22 shows an example of a table 2200 that associates vehicle type information and travel regulation information. As shown in the figure, the table 2200 shows that, for example, if the car type is a 2003 year ten No. 1, it is a right-hand drive car, so the right image is subject to travel regulation, and if the car type is a 2005 year ten No. 2 It is a left-hand drive vehicle, and therefore the left image indicates that it is subject to travel regulation. Accordingly, when the display device is incorporated in the vehicle body, connected to the battery, and powered on, for example, if the vehicle type information can be automatically acquired via the in-vehicle LAN, the CPU 1021 shown in FIG. 10 refers to the table 2200. Thus, the travel regulation can be automatically set.

  FIG. 23 is a diagram showing a schematic configuration of the in-vehicle LAN. As the computerization of vehicles progresses, the types and quantities of electronic devices and electronic control devices to be mounted have increased, and in-vehicle LANs have been developed and used in earnest in order to perform precise control by linking them. As shown schematically in FIG. 23, the current in-vehicle LAN includes a main network 2301 and a plurality of sub-networks connected thereto. The sub-network is connected to a power train sub-network 2302 to which an engine, brake, ABS, transmission, etc. or its control unit (ECU) is connected, an air conditioner, a door, a seat, a handle, a keyless entry system, etc. or its control unit. A body-type sub-network 2303, an airbag, a collision sensor, etc., or an airbag-type sub-network 2304 to which a control device thereof is connected, and an information-type sub-network 2305 to which a navigation device, an audio device, etc. or its control device are connected. These sub-networks have communication speeds and communication protocols suitable for their use.

  The display device 2306 according to the present invention is connected to the information system sub-network 2305 together with the navigation device 2307, the TV device 2308, the DVD device 2309, and the like. Normally, a device connected to the information system sub-network 2305 does not have information on the vehicle type. On the other hand, for example, a control device that controls devices such as an engine and a brake connected to the powertrain subsystem 2302 may have information on the type of vehicle on which these devices are mounted. In such a case, the display device 2306 connected to the information system sub-network 2305 can acquire vehicle type information from other sub-network system devices via the main network 2301.

  Therefore, by referring to the driver seat information table shown in FIG. 22 based on the vehicle type information acquired through the in-vehicle LAN, the display device 2306 can automatically acquire the driver seat information of the own vehicle. The travel restriction control can be executed based on the information. As a result, according to the present embodiment, the correct travel regulation is automatically executed when the display device is attached to the vehicle without waiting for the travel regulation setting operation by the user or the producer, the car dealer, etc. There is no room for incorrect or unauthorized travel restrictions.

  The video in the present invention includes a still image and a moving image.

1 is a conceptual diagram of a display device according to the present invention. It is a perspective view which shows the example of mounting of a display apparatus. It is the schematic of the cross-section of a display part. It is the schematic of the structure which looked at the display panel from the front. It is a circuit diagram which shows the outline of a TFT substrate. It is a block diagram which shows the outline of the display apparatus which concerns on this invention. 2 is a block diagram illustrating an outline of an image output unit 211. FIG. 2 is a block diagram illustrating an outline of a control unit 200. FIG. 2 is a block diagram showing an outline of a memory 218. FIG. 1 is a block diagram showing a schematic configuration of a vehicle-mounted display device that is an embodiment of the present invention. FIG. 10 is a schematic diagram illustrating a configuration of a display unit 1001. 10 is a flowchart for explaining the processing contents of a CPU 1021 in a display control unit 1002. The flowchart for demonstrating the processing content at the time of the video display by CPU1021. (A) And (b) is a schematic diagram which shows an example of a video display. (A) is a schematic diagram which shows the example of a screen transition accompanying driving | running | working regulation in case a driver's seat is the right side, (b) is a driver's seat on the left side. (A) is a schematic diagram which shows the other example of the screen transition accompanying a travel regulation in case a driver's seat is a right side, (b) is a driver's seat on the left side. The initial setting flowchart of driver's seat information. The figure which shows the operation screen at the time of initial setting. The driver seat information setting change flowchart. The figure which shows the operation screen at the time of a setting change. The figure which shows the installation place of a dip switch. The figure which shows a driver's seat information table. The figure which shows the structure of vehicle-mounted LAN.

Explanation of symbols

1001 Display unit 1002 Display control unit 1003 Video signal source 1004 Vehicle speed sensor 1005 Memory 1006 User setting input unit 1021 CPU
1025 Left video output unit 1026 Right video output unit 1031 Navigation device 1032 DVD player 1033 Television receiver 2103 Dip switch 2200 Driver's seat information table

Claims (6)

Display means capable of displaying individual images for the two viewing directions on the driver's seat and passenger's seat side on the same screen;
Setting means for setting information on the driver's seat position of the vehicle in which the display means is installed;
Control means for permitting display of individual images for the two viewing directions of the driver seat side and the passenger seat side on the display means when information on the driver seat position is set by the setting means. Characteristic display device. Display means capable of displaying different types of images for the two viewing directions on the driver's seat side and the passenger seat side on the same screen;
Setting means for setting information on the driver's seat position of the vehicle in which the display means is installed;
Control means for permitting display of different types of images for the two viewing directions on the driver's seat side and the passenger's seat side on the display means when information on the driver's seat position is set by the setting means. A display device. The display device according to claim 2,
The display means further comprises a receiving means for receiving a request to display different types of images for the two viewing directions on the driver's seat side and the passenger seat side,
When the information regarding the driver's seat position of the vehicle is not set, and the request for displaying a different type of image on the display means is received by the receiving means, the setting means sets the information regarding the driver's seat position of the vehicle. A display device characterized by performing. The display device according to claim 3,
When the reception unit receives a request to display different types of images on the display unit, and the setting unit sets information related to the driver's seat position of the vehicle, navigation information is displayed at least as an image for the viewing direction on the driver's seat side. A display device characterized by displaying. A display method for displaying individual images for two viewing directions on the driver's seat side and the passenger's seat side on the same screen of the display means,
When information related to a driver's seat position of a vehicle in which the display unit is installed is set, display of individual images for two viewing directions on the driver side and the passenger seat side on the display unit is permitted. And display method. A display method for displaying different types of images for two viewing directions on the driver's seat side and the passenger's seat side on the same screen of the display means,
When information related to the driver's seat position of the vehicle on which the display unit is installed is set, display of different types of images for the two viewing directions on the driver side and the passenger seat side on the display unit is permitted. Characteristic display method.

Images